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• iiiiiiiiiiiiiiuiii ~ xxx X66 May 12, 1981 Mr. R. E. Thomason Manager, Environmental Services Occidental 011 Shale, Inc. P. 0. Box 2687 Crand Junction, Colorado 81502 Dear Mr. Thomason: I inspected the Logan Wash operation on May 6, 1981 with Ed Foy and Dave Dise. I have a few comments end questions for you based on the field inspection and review of Occidental's permit and recent annual report. Please call before you make a written response. The seed mix listed in Tablo II of the annual report differs from the seed min approved in the permit (sea March 1, 1978 letter from R. L~. Thomason to Dean Massey and supplemental materlala submitted in a February 28, 1978 meeting). Please explain and correct this discrepancy. It may be necessary to need addi- tional species, particularly forb species, this fall. Shrubs must also be transplanted, possibly next spring, in accordance with the approved plan. Areas 1 through 18, identified in the reclamation plea contained in the February z8, 1978 submittal, do not all appear on any maps submitted to MLR that I can find. These areas are numbered differently in the annual report. Please submit a map showing all affected areas sad make it clear which reclamation procedure contained in your permit applies to which areas. Please be consistent in how you refer to the affected areas to help avoid confusia~~. At least five areas (4, 7, 9, 9 and 16) in the Pebruary 28, 1978 submittal are to be topeoiled with 6, 8 or 18 inches of topsoil. Where will this topsoil come from? I only noted one topsoil stockpile, located west of the intersection near the heater treater area, which apparently came from the heater treater area. It does not appear that topsoil has been salvaged from all affected areas where it could have been. Please eaplain. The topsoil stockpile west of the heater treater facility needs to be protected from erosion or contamination. This should be accomplished by first moving the pile away from the edge of the gully where it now site, reshaping the pile eo that no elopes are gseater than about 3:1 and constructing a tw to three foot high berm around the downslope sides to trap any eroded soil. The pile should be protected from any runron; runoff from other areas should be diverted around the stockpile. The soil should be seeded with a quick growing cover crop plus perennial grass and mulched as Boon as practical. A good temporary seed miz might include barley, yellow eweetclover and western vheatgrass or other suitable greas(es) as approved by the Mined Land Reclamation Division.